August 11, 2020 Penstemon heterophyllus var. heterophyllus Foothill Penstemon Foothill penstemon (Penstemon heterophyllus). Photo by Samuel Goldstein, CC BY-NC 2.0.Chaparral penstemon (Penstemon heterophyllus), is a B-ranked “watch list” species in Alameda and Contra Costa counties. Photo by Dianne Lake. More InformationImproving the Way We Assess Rarity in the Unusual Plants Project
